[2] | 1 | // Copyright (c) 2013 by István Váradi
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| 2 |
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| 3 | // This file is part of XPLRA, a remote-access plugin for X-Plane
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| 4 |
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| 5 | // Redistribution and use in source and binary forms, with or without
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| 6 | // modification, are permitted provided that the following conditions are met:
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| 7 |
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| 8 | // 1. Redistributions of source code must retain the above copyright notice, this
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| 9 | // list of conditions and the following disclaimer.
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| 10 | // 2. Redistributions in binary form must reproduce the above copyright notice,
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| 11 | // this list of conditions and the following disclaimer in the documentation
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| 12 | // and/or other materials provided with the distribution.
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| 13 |
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| 14 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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| 15 | // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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| 16 | // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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| 17 | // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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| 18 | // ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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| 19 | // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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| 20 | // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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| 21 | // ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 22 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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| 23 | // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 24 |
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| 25 | // The views and conclusions contained in the software and documentation are those
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| 26 | // of the authors and should not be interpreted as representing official policies,
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| 27 | // either expressed or implied, of the FreeBSD Project.
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| 28 |
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| 29 | //------------------------------------------------------------------------------
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| 30 |
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| 31 | #include "ServerThread.h"
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| 32 |
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[36] | 33 | #include "ListenThread.h"
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[3] | 34 | #include "RequestQueue.h"
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[5] | 35 | #include "Protocol.h"
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[3] | 36 | #include "GetDataRefTask.h"
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[7] | 37 | #include "SetDataRefTask.h"
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[3] | 38 | #include "TaskRequest.h"
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[8] | 39 | #include "GetMultiDataRefRequest.h"
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[9] | 40 | #include "SetMultiDataRefRequest.h"
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[38] | 41 | #include "MessageRequest.h"
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[3] | 42 |
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[11] | 43 | #include <hu/varadiistvan/xplcommon/Util.h>
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[3] | 44 |
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| 45 | #include <cstdio>
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| 46 |
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[2] | 47 | //------------------------------------------------------------------------------
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| 48 |
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| 49 | using xplra::ServerThread;
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| 50 |
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[11] | 51 | using hu::varadiistvan::scpl::io::LocalAcceptor;
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| 52 | using hu::varadiistvan::scpl::Mutex;
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| 53 | using hu::varadiistvan::xplcommon::Util;
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[3] | 54 |
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| 55 | using std::string;
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[2] | 56 |
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| 57 | //------------------------------------------------------------------------------
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| 58 |
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| 59 | Mutex ServerThread::instancesMutex;
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| 60 |
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| 61 | ServerThread::instances_t ServerThread::instances;
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| 62 |
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| 63 | //------------------------------------------------------------------------------
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| 64 |
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| 65 | void ServerThread::quitAll()
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| 66 | {
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| 67 | instancesMutex.lock();
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| 68 | for(instances_t::iterator i = instances.begin(); i!=instances.end(); ++i) {
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| 69 | (*i)->quit();
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| 70 | }
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| 71 | instancesMutex.unlock();
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| 72 | }
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| 73 |
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| 74 | //------------------------------------------------------------------------------
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| 75 |
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[36] | 76 | ServerThread::ServerThread(ListenThread& listenThread,
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| 77 | RequestQueue& requestQueue, LocalAcceptor& acceptor) :
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[2] | 78 | Thread(true),
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[36] | 79 | listenThread(listenThread),
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[3] | 80 | requestQueue(requestQueue),
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[2] | 81 | bufferedStream(acceptor.getSocket(&waiter)),
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[8] | 82 | stream(*bufferedStream),
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[9] | 83 | nextGetMultiRequestID(1),
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| 84 | nextSetMultiRequestID(1)
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[2] | 85 | {
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| 86 | instancesMutex.lock();
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| 87 | instances.insert(this);
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| 88 | instancesMutex.unlock();
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| 89 | }
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| 90 |
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| 91 | //------------------------------------------------------------------------------
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| 92 |
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| 93 | ServerThread::~ServerThread()
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| 94 | {
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| 95 | delete bufferedStream;
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| 96 |
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[8] | 97 | for(getMultiRequests_t::iterator i = getMultiRequests.begin();
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| 98 | i!=getMultiRequests.end(); ++i)
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| 99 | {
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| 100 | delete i->second;
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| 101 | }
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| 102 |
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[9] | 103 | for(setMultiRequests_t::iterator i = setMultiRequests.begin();
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| 104 | i!=setMultiRequests.end(); ++i)
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| 105 | {
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| 106 | delete i->second;
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| 107 | }
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| 108 |
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[2] | 109 | instancesMutex.lock();
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| 110 | instances.erase(this);
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| 111 | instancesMutex.unlock();
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| 112 | }
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| 113 |
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| 114 | //------------------------------------------------------------------------------
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| 115 |
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| 116 | void ServerThread::quit()
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| 117 | {
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| 118 | stream.interrupt();
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| 119 | }
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| 120 |
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| 121 | //------------------------------------------------------------------------------
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| 122 |
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| 123 | void ServerThread::run()
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| 124 | {
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[3] | 125 | Util::debug("hu.varadiistvan.xplra.ServerThread[%p]::run\n", this);
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| 126 | while(stream) {
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| 127 | uint8_t command = stream.readU8();
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| 128 | if (!stream) continue;
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| 129 |
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| 130 | // Util::debug("hu.varadiistvan.xplra.ServerThread[%p]::run: command=0x%02x\n",
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| 131 | // this, command);
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| 132 |
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[6] | 133 | if (command==Protocol::COMMAND_GET_SINGLE) {
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[7] | 134 | if (!handleGetSingle()) break;
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| 135 | } else if (command==Protocol::COMMAND_SET_SINGLE) {
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| 136 | if (!handleSetSingle()) break;
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[10] | 137 | } else if (command==Protocol::COMMAND_GET_MULTI) {
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| 138 | if (!handleGetMulti()) break;
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| 139 | } else if (command==Protocol::COMMAND_SET_MULTI) {
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| 140 | if (!handleSetMulti()) break;
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[8] | 141 | } else if (command==Protocol::COMMAND_REGISTER_GET_MULTI) {
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| 142 | if (!handleRegisterGetMulti()) break;
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| 143 | } else if (command==Protocol::COMMAND_UNREGISTER_GET_MULTI) {
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| 144 | if (!handleUnregisterGetMulti()) break;
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| 145 | } else if (command==Protocol::COMMAND_EXECUTE_GET_MULTI) {
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| 146 | if (!handleExecuteGetMulti()) break;
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[9] | 147 | } else if (command==Protocol::COMMAND_REGISTER_SET_MULTI) {
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| 148 | if (!handleRegisterSetMulti()) break;
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| 149 | } else if (command==Protocol::COMMAND_UNREGISTER_SET_MULTI) {
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| 150 | if (!handleUnregisterSetMulti()) break;
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| 151 | } else if (command==Protocol::COMMAND_EXECUTE_SET_MULTI) {
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| 152 | if (!handleExecuteSetMulti()) break;
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[36] | 153 | } else if (command==Protocol::COMMAND_GET_VERSIONS) {
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| 154 | if (!handleGetVersions()) break;
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[38] | 155 | } else if (command==Protocol::COMMAND_SHOW_MESSAGE) {
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| 156 | if (!handleShowMessage()) break;
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[3] | 157 | } else {
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[5] | 158 | stream.writeU8(Protocol::RESULT_INVALID_COMMAND);
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[3] | 159 | }
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| 160 | stream.flush();
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| 161 | }
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| 162 |
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| 163 | Util::debug("hu.varadiistvan.xplra.ServerThread[%p]::run: quitting\n", this);
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[2] | 164 | }
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| 165 |
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| 166 | //------------------------------------------------------------------------------
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| 167 |
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[7] | 168 | bool ServerThread::handleGetSingle()
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[6] | 169 | {
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| 170 | uint8_t result = Protocol::RESULT_OK;
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| 171 | GetDataRefTask* task = GetDataRefTask::create(result, stream);
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| 172 |
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[8] | 173 | if (!stream) {
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| 174 | return false;
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| 175 | } else if (task==0) {
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[7] | 176 | stream.writeU8(result);
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[6] | 177 | return true;
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| 178 | }
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| 179 |
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| 180 | TaskRequest request(task);
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| 181 | if (!requestQueue.execute(&request)) return false;
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| 182 |
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| 183 | if (task->isValid()) {
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| 184 | stream.writeU8(Protocol::RESULT_OK);
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| 185 | task->writeValue(stream);
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| 186 | } else {
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| 187 | stream.writeU8(Protocol::RESULT_UNKNOWN_DATAREF);
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| 188 | }
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| 189 |
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| 190 | return true;
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| 191 | }
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| 192 |
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| 193 | //------------------------------------------------------------------------------
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| 194 |
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[7] | 195 | bool ServerThread::handleSetSingle()
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| 196 | {
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| 197 | uint8_t result = Protocol::RESULT_OK;
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| 198 | SetDataRefTask* task = SetDataRefTask::create(result, stream);
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| 199 |
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[8] | 200 | if (!stream) {
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| 201 | return false;
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| 202 | } else if (task==0) {
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[7] | 203 | stream.writeU8(result);
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| 204 | return true;
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| 205 | }
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| 206 |
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[9] | 207 | task->readValue(stream);
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| 208 | if (!stream) {
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| 209 | delete task;
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| 210 | return false;
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| 211 | }
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| 212 |
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[7] | 213 | TaskRequest request(task);
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| 214 | if (!requestQueue.execute(&request)) return false;
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| 215 |
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| 216 | stream.writeU8(task->isValid() ? Protocol::RESULT_OK :
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| 217 | Protocol::RESULT_UNKNOWN_DATAREF);
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| 218 | return true;
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| 219 | }
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| 220 |
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| 221 | //------------------------------------------------------------------------------
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| 222 |
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[10] | 223 | bool ServerThread::handleGetMulti()
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| 224 | {
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| 225 | uint8_t result = Protocol::RESULT_OK;
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| 226 | GetMultiDataRefRequest* request =
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| 227 | new GetMultiDataRefRequest(result, stream);
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| 228 | if (result!=Protocol::RESULT_OK || !stream) {
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| 229 | delete request;
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| 230 | stream.writeU8(result);
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| 231 | return stream;
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| 232 | }
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| 233 |
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| 234 | bool isOK = requestQueue.execute(request);
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| 235 |
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| 236 | if (isOK) {
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| 237 | request->writeResult(stream);
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| 238 | }
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| 239 |
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| 240 | delete request;
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| 241 |
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| 242 | return isOK;
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| 243 | }
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| 244 |
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| 245 | //------------------------------------------------------------------------------
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| 246 |
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| 247 | bool ServerThread::handleSetMulti()
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| 248 | {
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| 249 | uint8_t result = Protocol::RESULT_OK;
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| 250 | SetMultiDataRefRequest* request =
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| 251 | new SetMultiDataRefRequest(result, stream, true);
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| 252 | if (result!=Protocol::RESULT_OK || !stream) {
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| 253 | delete request;
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| 254 | stream.writeU8(result);
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| 255 | return stream;
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| 256 | }
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| 257 |
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| 258 | bool isOK = requestQueue.execute(request);
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| 259 |
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| 260 | if (isOK) {
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| 261 | request->writeResult(stream);
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| 262 | }
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| 263 |
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| 264 | delete request;
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| 265 |
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| 266 | return isOK;
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| 267 | }
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| 268 |
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| 269 | //------------------------------------------------------------------------------
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| 270 |
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[8] | 271 | bool ServerThread::handleRegisterGetMulti()
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| 272 | {
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| 273 | uint8_t result = Protocol::RESULT_OK;
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| 274 | GetMultiDataRefRequest* request =
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[10] | 275 | new GetMultiDataRefRequest(result, stream);
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[8] | 276 | if (result!=Protocol::RESULT_OK || !stream) {
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| 277 | delete request;
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| 278 | stream.writeU8(result);
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| 279 | return stream;
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| 280 | }
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| 281 |
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| 282 | size_t id = nextGetMultiRequestID++;
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| 283 | getMultiRequests[id] = request;
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| 284 |
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| 285 | stream.writeU8(Protocol::RESULT_OK);
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| 286 | stream.writeU32(id);
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| 287 |
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| 288 | return true;
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| 289 | }
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| 290 |
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| 291 | //------------------------------------------------------------------------------
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| 292 |
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| 293 | bool ServerThread::handleUnregisterGetMulti()
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| 294 | {
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| 295 | uint32_t id = stream.readU32();
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| 296 | if (!stream) return false;
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| 297 |
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| 298 | getMultiRequests_t::iterator i = getMultiRequests.find(id);
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| 299 | if (i==getMultiRequests.end()) {
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| 300 | stream.writeU8(Protocol::RESULT_INVALID_ID);
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| 301 | } else {
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| 302 | GetMultiDataRefRequest* request = i->second;
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| 303 | getMultiRequests.erase(i);
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| 304 | delete request;
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| 305 | stream.writeU8(Protocol::RESULT_OK);
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| 306 | }
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| 307 |
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| 308 | return true;
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| 309 | }
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| 310 |
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| 311 | //------------------------------------------------------------------------------
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| 312 |
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| 313 | bool ServerThread::handleExecuteGetMulti()
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| 314 | {
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| 315 | uint32_t id = stream.readU32();
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| 316 | if (!stream) return false;
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| 317 |
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| 318 | getMultiRequests_t::iterator i = getMultiRequests.find(id);
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| 319 | if (i==getMultiRequests.end()) {
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| 320 | stream.writeU8(Protocol::RESULT_INVALID_ID);
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| 321 | } else {
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| 322 | GetMultiDataRefRequest* request = i->second;
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| 323 | if (!requestQueue.execute(request)) return false;
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| 324 | request->writeResult(stream);
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| 325 | }
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| 326 |
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| 327 | return true;
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| 328 | }
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| 329 |
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| 330 | //------------------------------------------------------------------------------
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| 331 |
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[9] | 332 | bool ServerThread::handleRegisterSetMulti()
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| 333 | {
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| 334 | uint8_t result = Protocol::RESULT_OK;
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| 335 | SetMultiDataRefRequest* request =
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[10] | 336 | new SetMultiDataRefRequest(result, stream, false);
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[9] | 337 | if (result!=Protocol::RESULT_OK || !stream) {
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| 338 | delete request;
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| 339 | stream.writeU8(result);
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| 340 | return stream;
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| 341 | }
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| 342 |
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| 343 | size_t id = nextSetMultiRequestID++;
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| 344 | setMultiRequests[id] = request;
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| 345 |
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| 346 | stream.writeU8(Protocol::RESULT_OK);
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| 347 | stream.writeU32(id);
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| 348 |
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| 349 | return true;
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| 350 | }
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| 351 |
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| 352 | //------------------------------------------------------------------------------
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| 353 |
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| 354 | bool ServerThread::handleUnregisterSetMulti()
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| 355 | {
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| 356 | uint32_t id = stream.readU32();
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| 357 | if (!stream) return false;
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| 358 |
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| 359 | setMultiRequests_t::iterator i = setMultiRequests.find(id);
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| 360 | if (i==setMultiRequests.end()) {
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| 361 | stream.writeU8(Protocol::RESULT_INVALID_ID);
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| 362 | } else {
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| 363 | SetMultiDataRefRequest* request = i->second;
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| 364 | setMultiRequests.erase(i);
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| 365 | delete request;
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| 366 | stream.writeU8(Protocol::RESULT_OK);
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| 367 | }
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| 368 |
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| 369 | return true;
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| 370 | }
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| 371 |
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| 372 | //------------------------------------------------------------------------------
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| 373 |
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| 374 | bool ServerThread::handleExecuteSetMulti()
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| 375 | {
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| 376 | uint32_t id = stream.readU32();
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| 377 | if (!stream) return false;
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| 378 |
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| 379 | setMultiRequests_t::iterator i = setMultiRequests.find(id);
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| 380 | if (i==setMultiRequests.end()) {
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| 381 | stream.writeU8(Protocol::RESULT_INVALID_ID);
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| 382 | } else {
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| 383 | SetMultiDataRefRequest* request = i->second;
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| 384 | request->readValues(stream);
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| 385 | if (!stream || !requestQueue.execute(request)) return false;
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| 386 | request->writeResult(stream);
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| 387 | }
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| 388 |
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| 389 | return true;
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| 390 | }
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| 391 |
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| 392 | //------------------------------------------------------------------------------
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| 393 |
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[36] | 394 | bool ServerThread::handleGetVersions()
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| 395 | {
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| 396 | int xplaneVersion = 0;
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| 397 | int xplmVersion = 0;
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| 398 |
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| 399 | listenThread.getVersions(xplaneVersion, xplmVersion);
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| 400 |
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| 401 | stream.writeU8(Protocol::RESULT_OK);
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| 402 | stream.writeS32(xplaneVersion);
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| 403 | stream.writeS32(xplmVersion);
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| 404 | stream.writeS32(Protocol::version);
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| 405 |
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| 406 | return true;
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| 407 | }
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| 408 |
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| 409 | //------------------------------------------------------------------------------
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| 410 |
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[38] | 411 | bool ServerThread::handleShowMessage()
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| 412 | {
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| 413 | string message = stream.readString();
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| 414 | float duration = stream.readFloat();
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| 415 | if (!stream) return false;
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| 416 |
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| 417 | if (duration>Protocol::MAX_MESSAGE_DURATION) {
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| 418 | stream.writeU8(Protocol::RESULT_INVALID_DURATION);
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| 419 | } else {
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| 420 | MessageRequest request(listenThread.getMessageWindow(), message, duration);
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| 421 | if (!requestQueue.execute(&request)) return false;
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| 422 |
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| 423 | stream.writeU8(Protocol::RESULT_OK);
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| 424 | }
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| 425 |
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| 426 | return true;
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| 427 | }
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| 428 |
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| 429 | //------------------------------------------------------------------------------
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| 430 |
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[2] | 431 | // Local Variables:
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| 432 | // mode: C++
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| 433 | // c-basic-offset: 4
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| 434 | // indent-tabs-mode: nil
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| 435 | // End:
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